Yao Zisheng, Rogalinski Julia, Asimakopoulou Eleni Myrto, Zhang Yuhe, Gordeyeva Korneliya, Atoufi Zhaleh, Dierks Hanna, McDonald Samuel, Hall Stephen, Wallentin Jesper, Söderberg Daniel, Nygård Kim, Villanueva-Perez Pablo
Synchrotron Radiation Research and NanoLund, Department of Physics, Lund University, Lund, Sweden.
Department of Fibre and Polymer Technology, Royal Institute of Technology, Stockholm, Sweden.
J Synchrotron Radiat. 2024 Sep 1;31(Pt 5):1299-1307. doi: 10.1107/S1600577524005290. Epub 2024 Jul 30.
The advent of diffraction-limited storage rings (DLSRs) has boosted the brilliance or coherent flux by one to two orders of magnitude with respect to the previous generation. One consequence of this brilliance enhancement is an increase in the flux density or number of photons per unit of area and time, which opens new possibilities for the spatiotemporal resolution of X-ray imaging techniques. This paper studies the time-resolved microscopy capabilities of such facilities by benchmarking the ForMAX beamline at the MAX IV storage ring. It is demonstrated that this enhanced flux density using a single harmonic of the source allows micrometre-resolution time-resolved imaging at 2000 tomograms per second and 1.1 MHz 2D acquisition rates using the full dynamic range of the detector system.
衍射极限储存环（DLSRs）的出现，使亮度或相干通量相对于上一代提高了一到两个数量级。这种亮度增强的一个结果是通量密度或单位面积和时间内光子数量的增加，这为X射线成像技术的时空分辨率开辟了新的可能性。本文通过对MAX IV储存环的ForMAX光束线进行基准测试，研究了此类设施的时间分辨显微镜能力。结果表明，利用光源的单个谐波实现的这种增强通量密度，能够以每秒2000张断层图像的速度以及使用探测器系统的全动态范围以1.1 MHz的二维采集速率进行微米级分辨率的时间分辨成像。
